<?php
	//获取IP
	function egetip(){
		if(getenv('HTTP_CLIENT_IP')&&strcasecmp(getenv('HTTP_CLIENT_IP'),'unknown')) 
		{
			$ip=getenv('HTTP_CLIENT_IP');
		} 
		elseif(getenv('HTTP_X_FORWARDED_FOR')&&strcasecmp(getenv('HTTP_X_FORWARDED_FOR'),'unknown'))
		{
			$ip=getenv('HTTP_X_FORWARDED_FOR');
		}
		elseif(getenv('REMOTE_ADDR')&&strcasecmp(getenv('REMOTE_ADDR'),'unknown'))
		{
			$ip=getenv('REMOTE_ADDR');
		}
		elseif(isset($_SERVER['REMOTE_ADDR'])&&$_SERVER['REMOTE_ADDR']&&strcasecmp($_SERVER['REMOTE_ADDR'],'unknown'))
		{
			$ip=$_SERVER['REMOTE_ADDR'];
		}
		return preg_replace("/^([\d\.]+).*/", "\\1",$ip);
	}
	
?>